29-Year-old Le Fei is a senior executive of Chengjie Company. He is talented, handsome and rich. One day, he fell down from a building for no reason, and the police determined it to be suicide through surveillance. In the face of the evidence, Le Fei's family was forced to accept it. Le Fei was usually optimistic, cheerful, and generous. She had good interpersonal relationships at work. She was filial to her parents at home and took care of her younger siblings. She had never made enemies with anyone, and she never left a suicide note before her death. Le Fei's colleagues, classmates, and friends all believed that she had no reason to commit suicide. Le Fei's half-sister frequently dreamed of her sister wearing ancient costumes after she fell from the building, and she was reluctant to talk to her. Moreover, her sister's death was mysterious, which confirmed her to find out the reason for her sister's suicide. With the help of Le Fei's half-brother Huang Jinyu, I logged into Le Fei's game software and discovered that my sister actually committed suicide because she got too involved in the romance game.